GB394969A - Improvements in or relating to fittings for supporting electric lampholders - Google Patents

Improvements in or relating to fittings for supporting electric lampholders

Info

Publication number
GB394969A
GB394969A GB3057631A GB3057631A GB394969A GB 394969 A GB394969 A GB 394969A GB 3057631 A GB3057631 A GB 3057631A GB 3057631 A GB3057631 A GB 3057631A GB 394969 A GB394969 A GB 394969A
Authority
GB
United Kingdom
Prior art keywords
holder
cones
ring
arms
knife edges
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3057631A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FRANK GORDON QUANCE
General Electric Co PLC
Original Assignee
FRANK GORDON QUANCE
General Electric Co PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FRANK GORDON QUANCE, General Electric Co PLC filed Critical FRANK GORDON QUANCE
Priority to GB3057631A priority Critical patent/GB394969A/en
Publication of GB394969A publication Critical patent/GB394969A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

394,969. Supporting electric-lamp holders. GENERAL ELECTRIC CO., Ltd. and QUANCE, F. G., Magnet House, Kingsway, London. Nov. 4, 1931, No. 30576. [Classes 39 (ii), 75 (iii), and 75 (iv).] An electric-lamp holder 13 is detachably connected with a tube 3 in a canopy &c. and through which the leads pass by means of cranked arms 15 on a ring 14, secured to the holder, engaging clips 7 carried by cranked arms 5 on a disc 1 secured to the tube. Each clip 7 comprises a truncated metal cone 9 and a washer 10, slidably mounted on a bolt 8 and pressed together by springs 12. The arms 15 have a knife edge 18 and a slot 19, bevelled at the inner end. To attach the holder, it is pushed towards the disc 1, the cones 9 acting on the ring 14 to centre it relatively to the disc. The holder is then turned to engage the knife edges 18 with the cones and moved down, while still being rotated to retain the knife edges in contact with the cones, until the knife edges enter annular recesses formed bv annular rounded shoulders 11 on the cones and washers. On rotating the holder, the knife edges force apart the cones and washers, the slots 19 engage the bolts 8 and the springs 12 force the cones and washers into the bevels so that the holder is clipped firmly in position but is resiliently supported. The holder may be adjusted by reversing the ring 14 or by screwing the bolts 8 in the arms 5, thereby also adjusting the springs. In a modification, the cones 9 are fixed and provided with hollow spring plungers sliding on the bolts. The holder may be rigidly secured in a lantern, the ring 14 being mounted on the top of the lantern.
GB3057631A 1931-11-04 1931-11-04 Improvements in or relating to fittings for supporting electric lampholders Expired GB394969A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3057631A GB394969A (en) 1931-11-04 1931-11-04 Improvements in or relating to fittings for supporting electric lampholders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3057631A GB394969A (en) 1931-11-04 1931-11-04 Improvements in or relating to fittings for supporting electric lampholders

Publications (1)

Publication Number Publication Date
GB394969A true GB394969A (en) 1933-07-04

Family

ID=10309801

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3057631A Expired GB394969A (en) 1931-11-04 1931-11-04 Improvements in or relating to fittings for supporting electric lampholders

Country Status (1)

Country Link
GB (1) GB394969A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991002921A1 (en) * 1989-08-16 1991-03-07 Platus David L Vibration isolation system
US5310157A (en) * 1989-08-16 1994-05-10 Minus K Technology, Inc. Vibration isolation system
US5370352A (en) * 1989-08-16 1994-12-06 Minus K Technology, Inc. Damped vibration isolation system
US5549270A (en) * 1989-08-16 1996-08-27 Minus K Technology, Inc. Vibration isolation system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991002921A1 (en) * 1989-08-16 1991-03-07 Platus David L Vibration isolation system
US5310157A (en) * 1989-08-16 1994-05-10 Minus K Technology, Inc. Vibration isolation system
US5370352A (en) * 1989-08-16 1994-12-06 Minus K Technology, Inc. Damped vibration isolation system
US5549270A (en) * 1989-08-16 1996-08-27 Minus K Technology, Inc. Vibration isolation system

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